'6000 performance issue

[John F Carr]

In article <1131 at nlsun1.oracle.nl> hbergh at oracle.nl (Herbert van den Bergh) writes:
>This process currently has a data segment of 180Kb, of which about 100Kb is
>never modified. You can imagine what performance improvement sharing this
>data could give.

AIX copies shared data pages when they are first accessed, not when they are
first modified.  Some may find this suprising, but it is a natural consequence
of the memory management unit architecture.  Unfortunately, the C compiler
does not put objects declared "const" in read-only, shared storage.

--
    John Carr (jfc at athena.mit.edu)